It seems my Sonos Ace are lacking the ‘welcoming’ and ‘farewell’ sound when turned on and off or working, well, on and of, at least experienced not indicating this on a regular basis.
It’s quite annoying not really knowing if the agre turned on or off.
They have been update 1-2 times since i bought them in advance as pre-order at www.sonos.com when launced, recently updated to latest 3.1.4.e16.1c539 version late 2024.